Bharadwaj, Satish ; Ahluwalia, J. C. (1996) Mixed-surfactant system of dodecylbenzene sulfonate and alpha-olefin sulfonate: micellar and volumetric studies Journal of the American Oil Chemists' Society, 73 (1). pp. 39-45. ISSN 0003-021X
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Official URL: http://www.springerlink.com/content/q56t2471691253...
Related URL: http://dx.doi.org/10.1007/BF02523446
Abstract
Critical micelle concentrations of sodium salts of dodecylbenzene sulfonate, α-olefin (C16) sulfonate, and their mixtures have been evaluated by measuring the surface tensions of solutions at 298.15 K. Interaction parameters for mixed monolayer formation (βσ) and mixed-micelle formation (βM) have been calculated from the critical micelle concentration data. Densities of solutions of surfactants and their mixtures were measured with a vibrating-tube densimeter at 298.15 K. Apparent and partial molar volumes have been evaluated from solution density data. Results of the micellar properties have been eplained on the basis of a nonideal multicomponent mixed-micelle model. The mixed-surfactant system exhibits synergism in all aspects when the mole fraction of alpha-olefin sulfonate in the mixture is 0.2. Volumetric properties correlate well, as the partial molar volumes also show a minimum at the same composition of the mixture. Formation of a compact mixed micelle at this composition has been envisaged.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Oil Chemists' Society. |
Keywords: | Alpha-olefin Sulfonate; Dodecylbenzene Sulfonate; Interaction Parameters; Mixed Micelle; Mixed-surfactant System; Partial Molar Volumes; Synergism |
ID Code: | 331 |
Deposited On: | 21 Sep 2010 04:48 |
Last Modified: | 16 May 2016 11:35 |
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